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8 pc Denso Iridium TT Spark Plugs for 1973-1974 Mercedes-Benz 450SL 4.5L V8 qx

The #1 Seller of Genuine Denso Parts on eBay
US $77.49
ApproximatelyC $105.43
List price US $154.99 (50% off)What does this price mean?
Recent sales price provided by the seller
Condition:
New
4 available
Breathe easy. Returns accepted.
Shipping:
Free 4 day delivery
Get it between Fri, Jul 25 and Mon, Jul 28 to 91768.
Located in: Indianapolis, Indiana, United States
Returns:
30 days return. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
Payments:
     Diners Club

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Seller assumes all responsibility for this listing.
eBay item number:306331313636
Last updated on Jul 15, 2025 07:57:34 EDTView all revisionsView all revisions

Compatibility

This part is compatible with 4 vehicle(s)
YearMakeModelTrimEngineNotes
1974Mercedes-Benz450SLBase Convertible 2-Door4.5L 4520CC V8 GAS SOHC Naturally AspiratedGap 0.040;Iridium Tt - Ultimate Endurance And Power, 0.4Mm Iridium And 0.7Mm Platinum Twin-Tip Technology
1974Mercedes-Benz450SLBase Coupe 2-Door4.5L 4520CC V8 GAS SOHC Naturally AspiratedGap 0.040;Iridium Tt - Ultimate Endurance And Power, 0.4Mm Iridium And 0.7Mm Platinum Twin-Tip Technology
1973Mercedes-Benz450SLBase Convertible 2-Door4.5L 4520CC V8 GAS SOHC Naturally AspiratedGap 0.040;Iridium Tt - Ultimate Endurance And Power, 0.4Mm Iridium And 0.7Mm Platinum Twin-Tip Technology
1973Mercedes-Benz450SLBase Coupe 2-Door4.5L 4520CC V8 GAS SOHC Naturally AspiratedGap 0.040;Iridium Tt - Ultimate Endurance And Power, 0.4Mm Iridium And 0.7Mm Platinum Twin-Tip Technology
Portions of the information contained in this table have been provided by sixityauto

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
Brand
DENSO Auto Parts
Type
Spark Plug
Manufacturer Part Number
SX-1814 Iridium TT 1974 1973 Ignition
Item Length
3.620
Manufacturer Warranty
1 Year
Interchange Part Number
NGK C534 Bosch 11-59
Placement on Vehicle
Ignition > Hardware Fasteners Fittings
Compatible Make
Mercedes-Benz
Compatible Model
450SL
Compatible Year
1974 1973
Core Charge
Free - No Core Charge
Fitment Type
Direct Replacement
Bundle Description
8 pc Genuine DENSO Spark Plug Kit
UPC
Does not apply

Item description from the seller

About this seller

Sixity Auto Parts

98.8% positive feedback2.2M items sold

Joined May 2013
Sixity Auto Parts® helps drivers find premium OEM-replacement auto parts from the best brands in the world at unbeatable prices so they can repair their vehicles without breaking the bank. Find out ...
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
5.0

Seller feedback (611,227)

All ratings
Positive
Neutral
Negative
  • y***7 (506)- Feedback left by buyer.
    Past month
    Verified purchase
    Very good price for six spark plugs! Shipping was quick and reasonable. I have one suggestion on the packaging: ship in a padded box, rather than a padded envelope. The two individual spark plug boxes weren’t protected as well as the four boxed together. One plug came out of its’ box. But the rough handling is on the carrier. All in all, a great transaction! Thanks!
  • i***9 (2805)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Amazing eBay seller. Item was described perfectly. Well worth the money for this item. Item was delivered very quickly and the sellers communication was awesome. The item was also packed very well I give many props to the awesome seller for the way the item was packaged. I would definitely do business again with this seller. I also want to personally thank the seller for their amazing care in getting the package to me in great shape! A+++
  • b***m (425)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    This item was listed as fitting a 2009 Suzuki SX 4 but it was no where near being the correct part. However the part was new and in the box and was a nice part. Upon contacting the seller I was very quickly issued a return authorization and a shipping label. Once the seller had the return package I was again quickly issued a full refund. I would definitely do business with this seller again.